I feel bad for Nadal as he has been struggling since he came back from injury, seems to have lost some muscle aswell.

Nadal's game relies so much on physical intensity that it has to take its toll eventually. He's now lost a full grand-slam year to the effects of the tendinitis in his knees. I'd imagine he has shed some upper-body muscle to try and lessen the impact of all those five-set marathons on his joints. But that shedding of muscle takes away from his game too.

At the risk of sounding overly pessimistic, I doubt that he'll ever be the player he was. This time last year he had Federer in a psychological headlock.

Now that Fed has completed the Grand Slam set by winning the French, as well as achieving the record 15 Grand Slam titles, his place in history is assured. It'll be fascinating to see what happens when they next meet in a Grand Slam tournament.